Question

What are five general properties of aqueous bases? b. Name some common substances that have one or more of these properties.

Answer 1

Explanation:

(a) It is known that bases are the species which tend to give hydroxide ions ($OH^{-}$) when dissolved in water. Some general properties of aqueous solution of bases are as follows.

• An aqueous solution of a base will have a bitter taste.
• The color of acid-base indicators tend to change when they are added to an aqueous solution of base.
• When these solutions are touched then they feel slippery.
• When a base reacts with an acid then it tends to form salt and water.
• An aqueous solution of base is able to conduct electricity.

(b)   For example, some common substances that have one or more of these properties are as follows.

An aqueous solution of NaOH is basic in nature and it is able to conduct electricity. This solution also have a slippery texture.

An aqueous solution of KOH is basic in nature and it is able to conduct electricity. This solution also have a slippery texture.

Answer 2

Answer:

Explanation:(1)base are slippery to touch e.g sodium hydroxide NaOH(aq)..

(2) They can be corrosive e.g pottasium hydroxide KOH(aq) and sodium hydroxide NOH(aq)

(3) They can act as electrolytes e.g NaOH(aq)

(4) they react to acids to form salt and water

Na0H(s)+HCL(aq)>>>NaCL(a)+H20(l)

(5)they dissolve in water to form hydroxyl ion

KoH(aq) >>>>>k+ + 0H-